Chimney-valve for blast-furnace stoves.



K. LANDGREBE & M. W. JOHNSON, JR. CHIMNEY VALVE FOR BLAST FURNACE STOVES. APPLIOATION FILED JUNE 27, 1912.

1 ,()5'6, 1 O6, Patented Mar. 18, 1913.

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COLUMBIA PLANDORAPH CO..WASHXNGTON, D- c.

CHIMNEY VALVE FOB. BLAST FURNACE STOVES.

APPLICATION FILED JUNE 27, 1912.

Patented Mar. 18, 1913.

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K. LANDGREBE & M. W. JOHNSON, JR. CHIMNEY VALVE FOR BLAST FURNAGE STOVES. APPLICATION FILED JUNE 27, 1912.

1,056, 1 O6. Patented Mar. 18,1913.

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COLUMBIA PLANOGRAPH 60., WASHINGTON. D. C.

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UNITED STATES PATENT QFFTGE.

KARL LANDGBEBE AND MAR-K W. JOHNSON, 33., OF BIRMINGHAM, ALABAMA.

CHIMNEY-VALVE FOR BLAST-FURNACE STOVES.

Specification of Letters Patent.

Patented Mar. 18,1913.

Application filed June 27, 1912. Serial No. 786,243.

1 all 10. mm 2'15 may concern:

Be it known that we, Kant, LANDGREBE and Mimi W. Jonnsov. J12, citizens of the Fluted States of America, residing at Birmingham, in the county of Jetferson State of Alabama, have invented certain new and useful improvements in Chimney-Valves for Blast-Furnace Stoves, of which the following is a specification.

Our invention relates to certain improvements for chimney valves which are more particularly designed for use in connection with the mains that connect the stoves of a blast furnace installation with the stack. its at present designed these chimney valves are exceedingly heavy, pensive, being diflicult to handle and subject- The tendency now is to continually increase the size of the valve which will naturally increase the objections to the present constructions.

The object of our invention is to produce a chimney valve which can be quickly and easily handled, and the repairs on which will be comparatively small.

A. further object is to provide the valve casing with an elbow having an adjustable extension which is relatively light and can be easily moved to connect with or be disconnected from the stove port, thus avoiding any adjusting or handling of the valve itself or its casing in connection with the opening or closing of the valve.

A still further object is to make the elbow detachable from the valve casing which supports it and providing means whereby the elbow and all parts which would interfere with free access to the stove port may be easily shifted laterally suiiiciently to enable the stove to be cleaned or repaired and wit-hout making itnecessary to move the valve casing.

Our invention possesses many other advantages in design, construction and operation, which are hereinafter more particularly set. out, and comprises the details of construction and arrangement of parts which are fully described and claimed in the accompanying specification.

In the drawings, in which the preferred embodiment of our invention is described, Figure 1 is a side elevation of our improved chimney valve showing the inlet port of the stove in cross section. Fig. 2 is a detail plan view of the trolley hanger for the adjustable and cumbersome and ex-- l ing and both the valve sleeve on the elbow extension. Fig. 8 is a vertical sectional view through Fig. 1, and Figs. Al and 5 are detail views, the former showing the elbow mounted on the detachable rails on which it may be rolled away from the stove port, and the latter view showing the rails removed and the elbow resting on and connected to the valve casin which is its position when in use. Fig. 6 is an end elevation showing the elbow in full lines as shifted away from the stove port and resting on its supporting rails.

Similar reference numerals refer to similar parts throughout the drawings.

The valve casing 1 has a bottom port which connects with the gas main 2 leading to the furnace stack 3. The top port of the casing connects with an elbow 4t having an extension 5 upon which is slidably mounted a sleeve 6. A tapering collar 7 is mounted on the outer end of the sleeve and adapted to make a close fit in the tapered seat 8 of the port 9 in the stove 10. The vertically disposed valve casing 1 has a central horizontally disposed circular valve chamber 11 in which is disposed a rotary cylindrical one way valve 12 having trunnions 13 which are journaled in the inner ends of two bars 14-, the inner ends of which rest on fulcrum pins 15 carried by plates 16 which are bolted to each end of chamber 11. These bars 14, are connected to a counterbalance weight 17 which supports the valve in contact with the upper ported portion of its chamber. An arm 18 for operating the valve is connected to one of the trunnions 13. The valve construction, thus described, forms the subjectmatter of Letters Patent No. 1,024,785, issued to Mark V. Johnson, Jr, on the th day of April, 1912, and is peculiarly adapted to enable the large and heavy valve, such as is required for chimney valves, to be handled easily and yet to make an effective seal.

The flanges at the lower end of the casing 1 are connected by bolts to a base plate 19. The flanges at the upper end of the casing are adapted to receive and support the bottom flanges of the elbow at and the end flanges of casing and elbow are normally connected by means of heavy dowel pins 20 which are driven through alining openings therein. The front flanges are also adapted to be connected by a key bolt 21 slotted at its lower end to receive a wedge key 22. The elbow l is preferably formed of a single castcasing 1 and elbow 1 MAI ins an e id tiangg'e :23 which is taeed l o malt) a tight joint with )l the elhow to which it is ter evlindrieal surface of the is finished smooth so that the will slide easily thereon with a close elearaiu-e. 'lhis sleeve comprises a heavy haul; rellai L3 tornied hy a (:ylindri 'nl eastingr ha vine at its top, when in operating position. a slotted overhanging lug 2G. The forward end ot the eollar is turned lutenally to reeeive the inidporlion ot' the sleeve whit-h is made of thin steel plate having at its outer end an outturned flange whieh is riveted lo a front eollar 27. This collar 97 preteralily a thin steel Casting with its outer end drawn in on a taper to ll'ltllCC a snug lit wi h the beveled stove port seat 8 \vhieh il ill'llitftl by a metallic ring collar bolted to the door jl rz ine l he front eoilar 27 is provided with an overhanging lug if) having a slot therein which faces the slot in lug :26 and is disposed opposite to and in alinenieut theiarwith. The sleeve ts a whole is supported by a trolley which comprises a r through the base of which are inv i )olts whieh engage in the slots in he sleeve Q6 and ill, The hanger, at its r end, has bosses 39 through which '1 nine 33 pass and project on hoth ,ing adapteth on one side, to receive or wheels S-TlanrL on the other side hroug'h the t'orward end of a handle hints at eaeh end of the hearing pins,

are threadeth hold the parts therein enililed position and, if desired, any suitable roller bearings may be interposed to re luee the 't lt-tion (ill the wheels 34:. These trolley whet run on a trael: formed by a liar supported by hraehets 3?, which. are adjuster )ly eonneeted l 1 bolts 38 to top lugs 21$) on the elhow l. .lhese lugs each have a transverse inverted T-sl t which slots receive the lower heads on the hells 2-38 and permit the hraeltets 37 to he adjusted laterally and hringr the liar 36 into proper po sition over the sleeve (3. llhe hat: dle has a eounterhalance weight l1 adjustahly inountthereon for the purpose of distributing e weight uniformly in the trolley. Steps holted to the rihs on the rear taee of the elhow and turntah a means to enable the rator to mount the ehiinney valve and e the sleeve 6.

e aeeess to the stove port 9 pur e of el nine; out or repairing nd to avoid the expense and di'llirl? moving; the entire ('hiinney valve ied a speeial means for shitte elbow and the parts carried therehy alineinent. with the port without dis- )ing' the valve easing.

Referring more particularly to Figs. 4e, 5 and (l it: will he noted that the upper end oil: the trait and rear walls of valve eas ng l are provuleih at one sid with a pair oft steel east lugs 4-3 and, at the other side, with a.

V I 1 1 r rvi pan or steel l i east lugs Lees-e ugg's rie'idl holted to the asingand are :at vided with alining slots which through the lugs troni side to side; the slo in e: eh rusting i3 is closed overhead as seen in Fig. 3, while the slot in each C lett open overheath as shown in manner of designing the slots will i; i the insertion ot rails 1-5 into the slots. The elhow l at the tour hottoni eorners of its trout and rear sides is provided with h ill which receive hearing pins l7 upon whit'h flanged wheels are iournaled, suitahle roller hearings being vised tor the wheels if desired. llhese wheels stand ahove and in line with t 10 slots in the Castings and 4 ind slightly aheve the top edge of the rails l5 when the latter are first inserted in posi tion in the lugs. it wil be noted from Fig. l. that the forward end if) of eaeh rail is tapered and that the rails are likewise tapered at an intermediate point whieh eonies opposite to and ahove the castings l. Gills 51,, ha vine; each an upper tapered surtaee. are adapted to he inserted in the slots in the e: stings 4-3 and 144i. l'l'hen the are first inserted in the 'astings, the tapered surtaees l9 and will reston the tapered faces of the gihs so that. when the rails are driven in to a tinht fit in the astingsl the rails will he gradually 'aised until they lirst engage the wheels 48 and. then raise the lat ter and with them the elbow \Yllh'll will have heen previously diseonneeted tron; the valve easing; hy the renuival of bolt 21 and pins 20. The outer ends of the rails iii are enlarged to i I'm stops and also have underhau ing gyih heads "3) to enahle them to he driven out at the listings on the valve casing.

in operation, when the parts are in the position shown in 1 and E3 the chimney valve door 54-. will he shifted to the right its trolley hanger 55 inovi which is suitably oonneeted to the were. The valve will then directly control the tlow o'l e as i ronl the stove to the staeln the sleeve 6 having been thrust tor-ward until, its

trout collar 2.7 makes a. ti ht tit with the seat of the port. ll hen it is desir-el to close the valve, the handle 18 is thrown to the right and the valve will swing; freely on its tloatingyj h a'iriii and (lose the port through the valve easing. Ti lie ogerator (an now mount th e steps 4-2 and. by means oi the handle 35 an easily and quickly draw the sleeve (3 on its trolley supports away from the por S) so that the door may he moved to close the stove port. 'l he sleeve will sli Le freely on the elbow extension 5 and it will. he noted that no partoi the elbow 4: extension 5, or

valve casing 1 require moving. The sleeve is comparatively light and, being well balanced on its trolley supports, can be moved with great ease to connect the elbow extension 5 with the port 9 If conditions require the cleaning out or repairing of the stove, free access to the portis necessary and this we accomplish by removing dowel pins 20 and key bolt 21 and driving in the rails so until they are forced by the co-acting wedge surfaces to engage the wheels %8 and raise the elbow until the latter and all parts connected therewith are supported solely by said wheels on the rails hen this is the case (see Fig. 1), the flanges on the elbow and on the valve casing are out of contact and the elbow may then be moved to the left, as shown in Fig. 6, its,

anti-friction roller supports making it possible to do this easily, quickly and with but little power. After the repairs have been completed, the elbow is rolled back into position opposite the port 9 and the rails %5 are driven out, thereby gradually lowering the elbow until it is supported by its flanges on the valve casing and in position to be connected therewith by the dowel pins and key bolt in the manner described.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is

1. In a chimney valve, a stationary valve casing comprising a valve and its operating means, an elbow detachably mounted on said casing and disposed opposite the stove port, and a laterally disposed track carried by said casing and adapt-ed to receive said elbow when the latter is shifted bodily on said casing to expose said port, substantially described.

A chimney valve comprising an adj ustable elbow normally disposed in front of a stove port, a stationary valve containing casing which supports said elbow, lateral and detachable supports carried by said casing, and means to shift the elbow bodily onto said supports to move it from positlon in front of said stove port, as and for the purposes described.

3. A. chimney valve comprising a valve containing casing mounted stationarily in front of the stove port, an elbow detachably mounted on said casing and disposed opposite the said port, and means to shift the whole elbow laterally on said casing to fully expose said port, said means comprising rollers and detachable track sections, substantially as described.

In a ch'mney valve, a valve casing, an elbow detachably mounted thereon, rollers journaled on the elbow, track rails detachably mounted on the casing, and means to raise the rails until they engage said rollers and support the elbow thereby free of said casing, substantially as described.

or to disconnect ittherefrom.

5. In a chimney valve, a valve casing, an elbow detachably mounted thereon, slotted lugs carried by the casing, track rails arranged to be inserted in the slots in said lugs and be supported by the lugs to form a laterally disposed track, means to transfer the weight of said elbow to said track rails, and rollers to support the elbow on said rails, substantially as described.

6. In a chimney valve, a valve casing, a pair of lugs on each side of the top thereof having alining slots, the slots in the lugs at one side being open at the top and at the other side being closed, track rails having tapered ends which fit in the closed slots and tapered intermediate portions which enter the open slots, an elbow mounted on and normally supported by the valve casing, and rollers on the elbow which are arranged to be engaged by the rails, as the latter are raised by the forcing of their wedged surfaces through the slotted lugs, substantially as described.

7. In a chimney valve, a valve casing, a pair of lugs on each side of the top thereof having alining slots, the slots in the lugs at one side bein open at the top and at the other side being closed, gibs inserted in said slots and having tapered upper faces, track rails having tapered ends which fit in the closed slots and tapered sides which rest on the gibs of the open slots, an elbow mounted on and normally supported by the valve casing, and roller projections on the elbow which are arranged to be engaged by the rails as the latter are driven toward the lugs and raised by the cooperation of their wedge surfaces with the wedged surfaces of the gibs, substantially as described.

8. A chimney valve comprising a valve casing, an elbow mounted thereon, a sleeve slidably supported on the horizontal end of the elbow and arranged to project beyond same to connect it with a stove port, and trolley means to adjustably support said sleeve, substantially as described.

9. A chimney valve comprising a valve casing, a heavy metal elbow mounted thereon and having a short horizontal end spaced from the stove port, a light metal sleeve mounted with a slip fit on said horizontal end of the elbow and arranged to project beyond same to connect it with a stove port, trolley means to adjustably support said sleeve from the elbow, and a track on which said elbow is adapted to be shifted laterally, substantially as described.

10. In a chimney valve, an elbow, a sleeve extension arranged to slip longitudinally over the horizontal end of the elbow, a trolley hanger connected to the sleeve, and a laterally adjustable track for the trolley hanger mounted on the elbow, substantially as described.

11. The combination with the elbow of a chimney valve of a sleeve which slidingly'l tits over and is arranged to project beyond the horizontal end of said elbow, a hanger connected to the sleeve, rollers mounted in the hange' and disposed to the rear of the center of gravity and reamvardly extending in ans connected to the hanger and arranged to counter-balanco the weight of the sleeve and distrilnite same uniformly on said supporting rollers.

12. in a chimney valve, a 'alve *asing, an elbow mounted thereon, a comparatively light adjustable sleeve which fits loosely over the horizontal end of the elbow, a trolley hanger connected to the sleeve, a track for the trolley, and a rearwardly eX- tending handle connected to the hanger.

13. In a chimney valve a alve casing, an elbow mounted thereon a compa 'ativcly light sleeve which tits slidingly over the horizontal end ot the elbow, a trolley hanger connected to the sleeve, a track for the trolley a rearwardly extending handle connected to the hanger and steps on the elbow, by means of which the said handle can be reached, substantially as described.

lat. in a chimney valve mechanisnn a stationary valve rasing an elbow detachably mounted on said casing, means on the easinn for providing a late rally disposed track onto which said elbow may be shiitted antl a light n'zetal sleeve longitudinally adjustt able on and arranged to extend beyond the horizontal end of the elbow, substantially as described.

15. A. chimney valve con'iprising a. sta tionary valve casing, an elbow formed by a main elbow body detachably connected to the top of the valve casing, and an elbow extension connected to said body, an extension sleeve which is mounted with a slip fit over said, extension and is arranged to project bo yond same, and means to adjust said sleeve, comprising a late ally adjustable track on the elbo\ and a trolley hanger mounted on the track and detachably connected to said sleeve, substantially as described.

16. In a chimney 'alve, the combination with. a valve casing and the elbow, of. a sleeve adjustably mounted on the elbow and comprising a heavy back collar, a relatively lighter front collar, an intermediate shell like body portion connecting said collars, and trolley supporting means for lllQ sleeve which are connected to said collars, substantially as described.

In l'tSillllOll) whereof we atlix our signatures in presence of two witnesses.

KARL LANDGEUCBE. liljlllli ll JOlrlrmUN, In.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

